User Verification and Identity

Protect your platform from fraud and keep customer accounts secure with Signalmash’s mobile identity signals and multi-factor authentication.

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No credit card required ｜ Quick setup ｜ Direct Tier-1 carrier connectivity

Toll-Free Numbers

Protect users with Multi-Factor Authentication

Build trust and protect accounts with one-time passcodes (OTP), mobile intelligence signals, and real-time verification workflows. Signalmash gives businesses a complete solution to prevent fraud while delivering a smooth customer experience.

Use cases

Fraud prevention

Stop SMS pumping, SIM swap fraud, and phishing attacks before they impact your business.

Signup verification

Confirm phone numbers or emails to prevent fake accounts and ensure ownership.

Login protection

Defend against account takeovers and password theft with added verification layers.

Secure transactions

Validate users in real time for high-value transactions.

Account management

Protect personal data when customers update or recover account details.

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How to build secure user authentication

No need for multiple vendors. Signalmash makes it simple to deploy user verification with just a few steps.

1

Create your verification service

Use Signalmash’s API to configure common verification workflows across sign-up, login, and account recovery.

2

Send a verification
token

Deliver OTPs through SMS, voice, email, or WhatsApp, whichever channel your users prefer.

3

Validate the
response

Check the code entered by the user. If it matches, access is approved; if not, the request remains pending.

How It Works

  • Secure sign-ups: Confirm email or phone ownership and flag suspicious behavior early.
  • Multichannel OTP delivery: SMS, voice, WhatsApp, and email for reliable global reach.
  • Seamless experience: Strong protection without creating friction for legitimate users
User Verification and Identity illustration

What you get with Signalmash

Easy-to-use APIs, global reliability, and built-in fraud prevention—delivered with the white-glove support Signalmash is known for.

Verification API

● Verify users over SMS, voice, WhatsApp, email, or app-based codes.

Lookup Services

● Validate numbers in real-time with carrier data, line type intelligence, and fraud risk signals.

Reliability & Scale

● Direct Tier-1 carrier routes (AT&T, Verizon, T-Mobile, Bandwidth) for higher deliverability and lower latency.
● Elastic infrastructure to handle sudden traffic spikes.

Fraud Protection

● Carrier-compliant OTP templates.
● SIM swap and SMS pumping detection.
● Rate-limiting and geo-permission controls.

Developer Friendly

● Clear documentation, SDKs, and quickstart guides.
● Dedicated Slack support channel with responses in minutes.

Why businesses choose Signalmash

While other CPaaS providers scale at the expense of support, Signalmash treats support as a product. Every customer gets direct access to real experts through Slack, no ticket queues, no tiered support delays.

Faster
approvals

Get your campaigns registered and compliant quickly.

Transparent pricing

No hidden fees or surprise charges.

Dedicated account manager

A partner invested in your success.

Superior call and message quality

Thanks to direct Tier-1 carrier connections.

Customer spotlight

Intuit-style case study placeholder:

“[Customer name] reduced fraud-related account issues by 40% and improved verification success rates after switching to Signalmash. With faster setup and hands-on support, they rolled out secure authentication in weeks instead of months.”

Signalmash Verifier illustration

Ready to secure your users?

Start verifying customer identities today with Signalmash. Get set up in minutes, test our APIs, and see why businesses choose us for reliable, compliant, and supported communication.

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